Includes bibliographical references (p. -544) and index
Part 1: Reality's arena -- Part 2: Time and experience -- Part 3: Spacetime and cosmology -- Part 4: Origins and unification -- Part 5: Reality and imagination
Roads to reality : space, time, and why things are as they are -- The universe and the bucket : Is space a human abstraction or a physical entity? -- Relativity and the absolute : Is spacetime an Einsteinian abstraction or a physical entity? -- Entangling space : What does it mean to be separate in a quantum universe? -- The frozen river : Does time flow? -- Chance and the arrow : Does time have a direction? -- Time and the quantum : insights into time's nature from a quantum realm -- Of snowflakes and spacetime : symmetry and the evolution of the cosmos -- Vaporizing the vacuum : heat, nothingness, and unification -- Deconstructing the bang : What banged? -- Quanta in the sky with diamonds : inflation, quantum jitters, and the arrow of time -- The world on a string : the fabric according to string theory -- The universe on a brane : speculations on space and time in M-theory -- Up in the heavens and down in the Earth : experimenting with space and time -- Teleporters and time machines : traveling through space and time -- The future of an allusion : prospects for space and time
Space and time form the very fabric of the cosmos. Yet they remain among the most mysterious of concepts. Is space an entity? Why does time have a direction? Could the universe exist without space and time? CAn we travel to the past?